如何使用显示标签将我想要删除/编辑的行中的值从 struts2 中的 jsp 传递给操作类? [英] How to pass the values in the row that i want to delete/edit to the action class from jsp in struts2 using display tag?
本文介绍了如何使用显示标签将我想要删除/编辑的行中的值从 struts2 中的 jsp 传递给操作类?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想用 struts2 创建编辑、删除显示标签中的链接.这是我的jsp代码
I want to create edit , delete link in display tag with struts2. This is my jsp code
<%@ page contentType="text/html; charset=UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%@taglib uri="http://displaytag.sf.net" prefix="display" %>
<html>
<head>
<title>Contact Manager - display tag Example</title>
<link href="css/style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<display:table name="contactList" requestURI="" pagesize="10" export="true" cellpadding="1" uid="sr" cellspacing="1" size="50"
defaultorder="ascending" sort="list" style="width:850"
id="row">
<display:column property="id" title="serial no" sortable="true" />
<display:column property="lastName" title="TV Show" sortable="true" />
<display:column property="firstName" title="User Name" sortable="true" />
<display:column property="emailId" title="Email Id" sortable="true" />
<display:column media="html"
title="Delete"
style="text-align:center">
<s:url id="deleteUrl" action="deleteLink">
<s:param name="id1" value="#attr.row.id" />
</s:url>
<s:a href="%{deleteUrl}">
Delete
</s:a>
</display:column>
<display:column media="html"
title="edit"
style="text-align:center">
<a href="deleteLink?id=<s:property value="id"/>">edit</a>
</display:column>
<display:setProperty name="export.excel.filename" value="ActorDetails.xls"/>
<display:setProperty name="export.pdf.filename" value="ActorDetails.pdf"/>
<display:setProperty name="export.pdf" value="true" />
</display:table>
</body>
</html>
这是我的动作类:
package net.viralpatel.contact.view;
import java.util.List;
import net.viralpatel.contact.controller.ContactManager;
import net.viralpatel.contact.model.Contact;
import com.opensymphony.xwork2.ActionSupport;
public class ContactAction extends ActionSupport implements ModelDriven<Contact>,Preparable {
private static final long serialVersionUID = 9149826260758390091L;
private Contact contact;
private List<Contact> contactList;
private ContactManager linkController;
public ContactAction() {
linkController = new ContactManager();
}
public String getRecords()
{
contactList =linkController.lSist();
return SUCCESS;
}
public String deleteRecord()
{
System.out.println(contact.getId());
return SUCCESS;
}
public Contact getContact() {
return contact;
}
public List<Contact> getContactList() {
return contactList;
}
public void setContact(Contact contact) {
this.contact = contact;
}
public void setContactList(List<Contact> contactsList) {
this.contactList = contactsList;
}
@Override
public Contact getModel() {
return contact;
}
@Override
public void prepare() throws Exception {
// TODO Auto-generated method stub
contact = new Contact();
}
}
如何将jsp页面中删除的行中的属性值获取到ContactAction类中的deleteRecord()方法中??这里声明
How do I get the values of the attributes in the row which I delete from the jsp page to the deleteRecord() method in the ContactAction class?? HERE the statement
System.out.println("ID IS "+contact.getId());
给出输出:ID IS null
gives an output: ID IS null
请提出一些解决方案.
谢谢
这是联系豆
package net.viralpatel.contact.model;
import java.io.Serializable;
import java.sql.Date;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name="Contacts")
public class Contact implements Serializable{
private static final long serialVersionUID = -8767337896773261247L;
private Long id;
private String firstName;
private String lastName;
private String emailId;
private String cellNo;
private Date birthDate;
private String website;
private Date created;
@Id
@GeneratedValue
@Column(name="id")
public Long getId() {
return id;
}
@Column(name="firstname")
public String getFirstName() {
return firstName;
}
@Column(name="lastname")
public String getLastName() {
return lastName;
}
@Column(name="email_id")
public String getEmailId() {
return emailId;
}
@Column(name="cell_no")
public String getCellNo() {
return cellNo;
}
@Column(name="birthdate")
public Date getBirthDate() {
return birthDate;
}
@Column(name="website")
public String getWebsite() {
return website;
}
@Column(name="created")
public Date getCreated() {
return created;
}
public void setId(Long id) {
this.id = id;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public void setEmailId(String emailId) {
this.emailId = emailId;
}
public void setCellNo(String cellNo) {
this.cellNo = cellNo;
}
public void setBirthDate(Date birthDate) {
this.birthDate = birthDate;
}
public void setCreated(Date created) {
this.created = created;
}
public void setWebsite(String website) {
this.website = website;
}
}
推荐答案
这里，就是我们可以使用<;s:param> 充当 setter 方法，可以使用 bean 类 Contact 的 getter 方法在操作类中检索其值
Here, is the answer we can use the <s:bean> to instantiate the bean class and then <s:param> acts as the setter method whose values can be retrieved in the action class using getter methods of the bean class Contact
<display:column media="html"
title="Delete"
style="text-align:center">
<s:url id="deleteUrl" action="deleteLink">
<s:bean name="net.viralpatel.contact.model.Contact"></s:bean>
<s:param name="id" value="#attr.row.id"></s:param>
<s:param name="firstName" value="#attr.row.firstName"></s:param>
</s:url>
<s:a href="%{deleteUrl}">
Delete
</s:a>
</display:column>
这篇关于如何使用显示标签将我想要删除/编辑的行中的值从 struts2 中的 jsp 传递给操作类?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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